The Transistor, cataloged under National Stock Number 5961-01-279-1003, is classified within Federal Supply Class 5961 (Semiconductor Devices and Associated Hardware) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Talk-a-Phone Co. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5961-01-279-1003 |
| Primary Part Number | 87540 |
| Item Name | Transistor |
| FSC / FSG | 5961 / 59 — Semiconductor Devices and Associated Hardware |
| Manufacturer | Talk-a-Phone Co |
| Status | ACTIVE |
| Semiconductor Material | SILICON |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 87540 PRIMARY | Talk-a-Phone Co (USA) |
NSN 5961-01-279-1003 is a Transistor, manufactured by Talk-a-Phone Co, classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
NSN 5961-01-279-1003 has 1 manufacturer part number on file: 87540 (Talk-a-Phone Co).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-656-8764. Verify interchangeability with system specifications before substitution.
Key specifications for 87540: Semiconductor Material: SILICON; Special Features: JUNCTION PATTERN ARRANGEMENT: NPN. 1 specification is documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.